Beater



W. J. ZIMMERMAN BEATER Oct. 13, 1931.

Filed April 25. 1927 INVENToR,

/4 M, ATTORNEY.

Patented Oct. 13, 1931' UNITED .STATES PATENT OFFICE WALTER J. ZIMMERMAN, OF DAYTON, OIO, ASSIGNOR T0 THE MEAD RESEARCH ENGINEERING COMPANY, 0F DAYTON, GHIO, A CORPORATION 0F OHIO BEATER Application filed April 25,

This invention relates to new and useful improvements in double acting vertical beaters for fibrous materials.

It is one of the principal objects of my -invention to provide for fibrous materials, a double acting vertical beater. In the ordinary type of horizontal beater, the power expended to obtain circulation is a large percentage of the total power consumed, since the use of only one bed plate requires that all the material to be beaten travel twice the distance asin my double acting type. Furthermore, the horizontal types must obtain their circulation by pumping all the contents over a high backfall every revolution or every time the beater'action is effected, to obtain the gravity flow-back. .My vertical beater7 on the other hand, by reason of the short pass of contents between beater actions, utilizes the intake and outlet displacement system, thus materially reducing the power per unit of beating capacity and thereby effecting a commercial saving in operation. My invention also effects a substantial savmgin floor space, since the driving motor being mounted above the beater, occupies no more floor area than the machine proper. In the present type of horizontal roll beaters, the pulley and outboard bearings project beyond the machine itself. The additional floor space required to draw the bed plates from machines of the horizontal type, is also obviated, since the bed plates employed with my vertical beaters are vertical ones which are fre to be lifted vertically fro'm the beater ro s.

The first mentioned advantage of two beating operations as against one in thepresent horizontal type machine, plus the advantage of doing the additional beating in less than half the floor space required by the horizontal type of beater, gives over four times the beating capacity of the present machingsJn the same floor area.

It is another object of my invention to directly connect the motor to the' beater roll shaft. This is possible with my vertical beater roll, since the motor may be mounted directly above it. In the present type the 1927. Serial No. 186,298.

beater roll is connected by belt to the motor, which is removed from the rear in lightering. If the motor were directly connected to the horizontal beater roll, it would have to be lifted with the roll when lightered. My invention provides for the lighteringvof the bed plates, thereby permitting the motor to be directly connected to the beater roll shaft.

It is another object of my invention to provide means for sealing againstithe passage of stock along the sides of the beater roll, thus making it impossible for the contents of the tub to wedge between the roll and the beater structure.

In my invention all accessibility for repairs and maintenance is made possible by one mechanism such as a single overhead .monorail. The present horizontal type of beater requires three lightering operations, namely, pulling'the bed plates out manually to the side, the removal of the motor from the rear and the roll from the top.

Other important and incidental objects will be brought out in the following specifi- -cation and particularly set forth in the subjoined claims.

In the accompanying drawing illustrating 'my invention, Figure 1 is a plan view looking down upon the beater from above, showing the motor mounting, the lighter operating mechanism, and incidentally the alignment that makes it possible lfor one overhead monorial to serve a battery of this type of beaters, set side by side. Figure 2 is a side elevational view of my beater, with a part of its right-hand portion broken away to reveal a section taken on the center line of Figure l. Figure 3 is a horizontal, sectional view of the beater taken on the line 3-3 of Figure 2, showing the position of the beater roll and bed plates, the approach and the back-fall to the bed plates, and the center position of the mid-feathers. And Figure 4 is a partial cross sectional view, taken on the line 4--4 of Figure 3, showing the lightering mechanism. v

Referring vto the accompanying drawing for a detailed description of my invention, the numeral 1 designates a beater tub adapted to receive iibrous'materials, for the purpose of breaking down small bundles of fibers, as well asffor hydrating individual fibers to a degree of hydration necessary to serve their ultimate use. Secured in the middle portion of the bottom 2 of the tub 1, is a st ep or other suitable bearing 3.' The bearing 3 receives the lower end of a vertical shaft 4 whose upper portion is journaled in a suitable bearing 5 mounted on a central cover 6. Mounted on the latter is an electric motor 7 whose armature shaft 8 is connected by a coupling 9 to the vertical shaft 4. (See Figures 1 and 2.)

Fixedly secured to the shaft 4 is a beater roll 10 having a grooved periphery to receive fly bars 11. (See Figures 2 and 3.)

At each side of the beater roll 10 the tub 1 is constructed with a vertical openin covered by a removable plate 12. Behin each plate 12 there are suitably secured to the tub 1,' two strengthening channel guides 13, 13 for a vertically and horizontally movable bed plate 14. Each bed plate is grooved opposite the beater roll 10, to receive stationary bars 15 whose outer ends are curved to conform to the periphery of the roll. (.See Figure 3.)

Secured to the inner portion of the tub wall and to the channel guide 13, which the stock first approaches on each Side of the beater roll 10, is an approach plate 16. To the inner portion of the tub 1 and the other channel guide 13 on each side of the latter, a backfall plate 17 is secured. (See Figure 3.)

On each side of the beater roll 10 there is secured in the tub 1, on its longitudinal axis, a mid-feather 18, preferably formed of wood and resting on the concrete base 19 of the tub. This base is tapered or graded to a low point to produce the proper drainage when the contents of the tub are dumped through the customary dump valve. (Not shown.)

Embedded in the, concrete base 19 is a sealing ring 20 that surrounds the bearing 3, which is also placed in the concrete. This ring 2() projects into an annular groove 21 in the bottom of the beater roll 10. Secured to a sub-cover 22, attached to the cover 6, is a like sealing ring 23, which is received by an annular groove 24 in the top of the beater roll. These rings 2() and 23 seal against the passage of stock along the sides or ends of 'the roll, making it impossible for the contents of the tube to wedge between the roll and the beater structure.

The stock, which is a fibrous material, is guided by each approach plate 16 between the beater roll 10 and the adjacent bed plate 14 for beating or disintegration between the surfaces of each. Each bed plate is yieldingly held in place by the guides 13, 13 and a spring such as the leaf spring 24a that is. adapted to be engaged by a cam 25 to obtain the tension desired. The springs 24a enable the bed plates to yield to the passage of any rm material not reduced to a fibrous condition.

From the foregoing description, it will be obvious that my vertically mounted beater f roll 10 and bed plates 14, 14 provide a double acting beater. In other words, it permits two beating operations as against one in the present horizontal type machine; and by reason of the short pass of contents between beater actions, the power per unit of beating capacity is materially reduced to eii'ect a com mercial saving in operation.

For the purpose of lightering the bed plates 14, 14, l have provided the following means.

On the outer side of each bed plate 14 there is a vertical lightering shaft 26 journaled in bearings'27, 27. See Figures 1 and 4.) Fast on the top portion of each shaft 26 is a worm wheel 28. Each worm wheel is meshed with a worm 29 fast on a transverse shaft 30, mounted ony top of the cover 6.

Through this worm shaft 30, which is actuated by a hand wheel 31, the lightering means for each bed plate are inter-connected for operation in unison.

The cams 25,425 heretofore referred to are secured to the shafts 26, 26,-respectively, so that when they are turned by the shaft 30, the springs 24a, 24a will be tensioned to place their respective bed plates 14, 14 under the ltension desired. Thus it is possible to lighter the bed plates while the roll 10 remains stationary, whereas in the presenthorizontal type, thel roll itself is lightered.

By means of a monorail, (not shown), the

motor 7, the beater roll 10 and the bed plates y 14, 14 may be lifted out vertically for repairs. and maintenance. The present horizontal type of beater requires three dismantling operations, namely, pulling the bed plates out manually to the side, the removal of the motor from the rear and the roll from the top'. For these additional operations, there is required addition-al floor space which is rendered unnecessary by my double acting, vertical beater. Thus, in addition to obtaining two beating operations as against one in the presen-t horizontal typemachine, I gain the advantage of doing the additional beating in less than halfthe floor space required b y that type of beater, thereby acquiring over our timesthe beating capacity of the present machines in the same floor area.

I do not wish to be limited to the details of construction and arrangement herein shown and described, and any changes or modifications may be made therein within the scope of the subjoined claims.

Having described my invention, I claim:

1. A beater for fibrous stock, comprising a tub, a vertically disposed beater roll for the stock in the tub mounted in iixed position, and an electric motor mounted over the tub above said beater roll and directly connected to the shaft of said beater roll.

2. A beater for fibrous stock, comprising a tub, a vertically disposed beater roll for the stock in the tub, and means for sealing against the passage of stock between the end of the roll and the tub.

3. A beater for fibrous stock, comprising a tub, a base and a cover for the tub, a vertical beater roll shaft, a step bearing for said shaft in said base, and a bearing for said shaft in said cover, a beater roll secured to said shaft, and an electric motor mounted on said cover and directly connected to said shaft, said motor being positioned within the horizontal confines of said tub.

4. A beater for fibrous stock, comprising A a tub, a base and a cover for said tub, a beater roll shaft, a bearing for said shaft in said base and the cover, a beater roll, secured to the shaft and formed on each side with a groove around the shaft, and a sealing ring in the base and the cover for-entrance into a respective groove in the beater roll.

5. A beat-er for-fibrous stock, comprising a tub, a base and a cover for said tub, a vertically disposed beater roll in said tub, a pair`of vertical bed plates adjacent said roll, a vertical shaft on each side of said roll, a cam on each shaft, a spring between each 'cam and a respective bed plate, a transverse shaft on said cover, an operating member for the transverse shaft,vand a worm connection between the latter shaft and the vertical shafts to lighter the bed plates through the cams.

6. A beater for fibrous stock, comprising a tub, a beater .roll in said tub, a bed plate in the tub adjacent the beater roll, means posi-l tioned wholly within said tub for yieldingly holding said bed plate in cooperative relation with said beater roll, and means for adjusting said yielding means, said bed plate and yielding means being within said tub whereby the wall of the tub adjacent the bed plate and yielding means is unbroken to insure against leakage. Y

7. A beater of the character described, comprising a tub, a beater roll within said tub, and means for sealing against the passage of stock betweentheends of said beater roll and said tub.

8. A beater of the character described, comprising a tub, a beater roll therein, a plurality of bed plates therein, means for yieldingly holding each of said bed plates in cooperative relation with said roll, and means for simultaneously adjusting said yielding means for the plurality of bed plates.

9. A beater of the character described comprising a tub, an upright bed plate in said tub. an upright beater roll mounted in fixed position in said tub in cooperative beating relation with said bed plate, said bed plate a being yieldably mounted with respect to said fixed beater roll to permit movement of said bed plate during operation to give a proper beating action, and an electric motor directly connected to the shaft of said beater roll for rotating said beater roll.

10. A beater of the character described, comprising a tub, an upright beater roll within said tub, an upright bed plate mounted in cooperative relation with said beater roll, the stock space of said tube extending substantially horizontally between and beyond the beater roll and bed plate to provide an effective horizontal fiow of stock between said beater roll and bed plate during operation, and means within the tub defining a stock circulation path and for directing the circulating stock between said beater roll and bed plate.

11. A beater of the character described, comprising an elongate tub, an upright beater roll having blades mounted within said tub, an upright bed plate having blades positioned in cooperative relation with said beater roll, the stock space of said tub extending substantially horizontally between and beyond the beater roll and bed plate, means for rotating said beater roll whereby the movement of the blades of thefbeater roll past the blades of the bed plate provides a stirring action producing an effective horizontal circulation of the stock between the beater roll and bed plate,.and a mid-feather within the tub terminating short of an end wall of the elongate tub defining a stock circulation path for directing the circulating stock between the beater roll and bed plate.

l2. beater of the character described, comprising a tub, an upright bed plate on one side of said tub, a second upright bed plate on the other side of said tub, an upright beater roll substantially filling the space within said tub between said bed plates and positioned 1n cooperative relation with both of said upright bed plates, the stock space of said tub extending substantially horizontally between and beyond each bed plate and the said beater roll, whereby an effective horizontal flow of stock in onedirection between the beater roll and one of said bed plates is permitted, and an effective horizontal flow of stock in an opposite direction between the beater roll and the `other bed plate is permitted, thereby providing a double-acting beater with a single beater roll.

13. A beater of the character described,A

comprising a tub, a plurality of upright bed plates for said tub, therebeing an upright bed er roll substantially filling the space Within said tub between bed plates on opposite sides thereof and positioned in cooperative relationship with bed plates on both sides of said tub, a midfeather in alignment with said beater roll and extending longitudinally of said tub on one side of said roll, and a second midrv"plate on each side of the tub, an upright beat- 4 Lacasse feather in alignment with said beater roll and extending longitudinally of said tub on the other side of said beater roll,.thereby providing a stock circulation path for the How of 5 stock in one direction in said tub between said beater roll and one of said bed plates and the Y flow of stock in an opposite direction between lsaid beater roll and the other` of said be'd plates on the opposite side of said tub.

14. A beater of the character described, comprising a tub having a stock confining wall, a vertically disposed beater roll within said tub, spaced vertical guides mounted within said tub on the interlor of said wall,

a vertical bed plate mounted between said spaced guides for bodily translational movement, spring means for yieldingly holding said bed plate in cooperative beating relation with said beater roll, and means for adjusting said spring means, said bed plate and yielding means being within said tub whereby the wall of the tub adjacent the bed plate and yielding means is unbroken to insure against leakage.

15. A beater of the character described comprising a tub, a beater roll within said tub, and interfitting surfaces on the end of the beater roll adjacent its periphery and the tub respectively for sealing against the by-passage of stock between the end of the beater roll and the tub without being sub` jected to beating action.

16. A beater of the character described, comprising a tub having a stock confining wall, a beater roll within said tub, spaced guides mounted within said tub on the inj, terior of said wall, a bedlplate mounted between said spaced' guides for bodily translational movement toward and away from said 40 beater roll, a plurality of spring means mounted within the space between said bed plate and said wall'or` the tub for yieldingly holding said bed plate in cooperative beating relation with said beater roll,I and means for simultaneously adjusting said plurality of spring means, said bed plate and spring means being within the tub whereby the wall of the tub adjacent the bed plate and s ring means is unbroken to insureragainst lea age. In witness whereof I have hereunto set my hand this 16th day of April, 1927.

WALTER J. ZIERN. 

